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125cc 4 Stroke Electric Start Engine Motor Air-cooled Single-cylinder Semi Auto Engine with 3 Forward 1 Reverse for ATV Bike Go kart Quad Dirt bike, Silver

Free shipping on orders over $29.99

$271.99

$ 99 .00 $99.00

In Stock

1.Color:125cc 4 Stroke


  • 🔧【Engine Type】125cc, 4-stroke, horizontal, single-cylinder, air-cooled, electric start, gear system: 3 forward/neutral/reverse gear, ignition: CDI, carburetor: PZ19, starter: foot-operated starter
  • 🔧【Important Parameters】 Oil capacity: 900ml; Max torque/rpm : 8.5 N.m/5000r/min±250 r/min; Idling speed: 1500r/min±100r/min;; Max net power/ rpm : 5.8 kw/ 7500r/ min±375 r/ min; Compression ratio : 9.0 : 1; Bore x stroke . 52.4 × 55.5 mm, 119.7 mL
  • 🔧【Fitment】This 125cc engine is made of high quality metal and well made, suitable for Atomik, Pitpro, TDR, H-uu-m-mm-er, Orion, Xmoto, Lei,Dmx, Swd, Tommahawk, Monsoon, Grudge, Kazuma, Bull. Trooper, Hunter, Motox, etc. (For more please see details page)
  • 🔧【Complete Package】The 125cc 4-stroke electric starter engine complete kit specifically includes engine, wiring, air filter, gasket, chain case, etc.
  • 🔧【Wiring Instructions】Pink (or yellow) wire: energy storage battery; black and red wire: signal trigger; green wire: ground; blue and white: trigger coil; five wires (plug): gear indicator



Product Description

1

125cc 4 Stroke Electric Start Engine Motor for ATV Go Kart Dirt Bike

DOONARCES

Specification

Type 125CC Horizontal, single-cylinder, 4-stroke, air-cooled
Start Method Electrical Start
Gear System 3 Forward; Neutral; 1 Reverse
Ignition CDI
Front sprocket 428-14T
Carburetor PZ19
Lubrication Pressure/splash
Oil capacity 900ml
Top/Bottom Engine Mount 92mm/82mm
Bore x Stroke 52.4 × 55.5 mm, 119.7 mL
Maximum net power/ rpm 5.8 kw/ 7500r/ min±375 r/ min
Maximum torque/ rpm 8.5 N.m/5000r/min±250 r/min
Idle speed 1500 r/min±100r/min
Air Filte 35mm
Bolt to Bolt 152mm (6")
Compression ratio 9.0: 1

ENGINE SIZE : 125CC

125cc 4 Stroke ATV Engine

Excellent Applicability

  • The 125cc 4-stroke electric start engine is widely used in Go kart, Quad, Dirt bike, ATV, Pit bike, Dirt bike, Buggy, Pocket rocket,etc.

125cc 4 Stroke ATV Engine

High Performance

  • The 125cc 4-stroke engine has both 3 forward, neutral and reverse, perfect for your needs. The electric starter makes starting faster and more convenient, easy to operate.

125cc 4 Stroke ATV Engine

High Quality Materials

  • Made of high-quality aluminum and alloy materials, the engine is robust and durable, and has a very textured surface with a metallic sheen.

Details

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Wiring Diagrams (If you have any questions, please feel free to ask us.)

125cc 4 Stroke Engine Motor

125cc 4 Stroke Engine Motor

125cc 4 Stroke Engine Motor

WIRING

1. Five wires (Plug): For gear indicator

2. Yellow wire: For storage battery

3. Pink (or Yellow) wire: For storage battery

4. Black & Red wire: For signal trigger

5. Green wire: For grounding

6. Blue & White: For trigger coil

NOTE

  • Refer to The Video and Pictures for The Specific Wiring Method
  • If you have any questions about Installation , please feel free to ask us.
  • Professional Installation Is Highly Recommended
  • Installation Manual Is NOT Included
1

Complete Accessories

Wiring/Carby

Airfilter/Gasket

Chain Case

More as picture shown


Ernesto Rodriguez
Reviewed in the United States on February 12, 2025
2nd engine purchased! They are good
Customer
Reviewed in the United States on August 16, 2024
Very pleased with customer service and the product
Nathan Ross
Reviewed in the United States on July 19, 2024
Upon first opening of box you realize that the wiring harness is almost as large as the motor. The video and pictures do very little to help. Had another person come over to help make heads and tails of it but after a week of working on it I am just now getting the starter to engage. Haven't had it running yet because the intake and carburetor don't fit under an atc70 so I have to fabricate an intake. Some very inexpensive labels for the electronics would have made this process much easier!! Of course they weren't smart enough to think of that. I'm only giving 2 stars to be fair because I honestly don't know if the engine even runs yet. After I account for the time I currently have invested next time I will be happy to pay 2 or 3 fold what I did for this engine just to get a name brand engine with tech support. DO NOT RECOMMEND!!!!!!!
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